Question:
How does supernatural powers affect Macbeth?
Thesis:
Both witches and apparitions succeed in their attempt at misdirection to give suffering to Macbeth.

Three Major Points and Evidence:
Corruption of power
-"If thou speak'st false, Upon the next tree shall thou hang alive Till famine cling thee." (Shakespeare 5.5.38~5.5.40)
Duplicity of people
-"We should have else desired your good advice, Which still hath been both grave and prosperous," (Shakespeare 3.1.21~3.1.22)
Deception
-"Go bid thy mistress, when my drink is ready, She strike upon the bell. Get thee to bed." (Shakespeare 2.1.32~2.1.33)